package reflect;

import java.lang.reflect.Field;
import java.util.Arrays;

public class ReflectDemo9 {
    public static void main(String[] args) throws Exception {
        String s1 = "hello";
        String s2 = "hello";
        System.out.println("s1:"+s1);
        System.out.println("s2:"+s2);

        Class cls = String.class;
        Field field = cls.getDeclaredField("value");
        field.setAccessible(true);
        char[] arr = (char[])field.get(s1);
        System.out.println(Arrays.toString(arr));
        char[] arr2 = new char[]{'j','a','v','a','!','!'};
        field.set(s1,arr2);

        System.out.println("s1:"+s1);
        System.out.println("s2:"+s2);

        String s3 = "hello";
        System.out.println("s3"+s3);
        System.out.println("hello");
        System.out.println("hello"+"world");
        String s = ",";
        System.out.println("hello"+s+"world");
    }
}
